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Earnings Per Share - Reconciliation of Number of Common Shares Used in Calculation of Basic and Diluted Earnings Per Share (EPS) (Details) - $ / shares
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 26, 2015
Sep. 30, 2016
Sep. 26, 2015
Earnings Per Share [Abstract]        
Basic EPS (in shares) 16,674,176 17,395,824 16,647,662 17,372,562
Effect of dilutive securities (in shares) 27,441 0 21,888 123,628
Diluted EPS (in shares) 16,701,617 17,395,824 16,669,550 17,496,190
Basic EPS (in dollars per share) $ 0.07 $ (0.05) $ 0.45 $ 0.23
Effect of dilutive securities (in dollars per share) 0.00 0.00 0.00 (0.01)
Diluted EPS (in dollars per share) $ 0.07 $ (0.05) $ 0.45 $ 0.22